Repeat after me: glitching works. Every time. If you don't have power, reset, and clock monitoring, your chip *will* be pwned. No exceptions.https://twitter.com/bernfroe/status/959405824840957952 …
Glitching attacks are rarely pure software. The only example I know of was the Wii U HRESET hack, where I used one CPU to reset glitch another CPU in the same (unmodified) system and extract keys. That one was a very slow glitch though (reset spec was 256 bus clocks).